Towards harmonization of microscopy methods for malaria clinical research studies by Dhorda, M, Ba, EH, Kevin Baird, J, Barnwell, J, Bell, D, Carter, JY, Dondorp, A, Ekawati. L, Gatton, M, González, I, Guérin, PJ, Incardona, S, Lilley, K, Menard, D, Nosten, F, Obare, P, Ogutu, B, Olliaro, PL, Price, RN, Proux, S, Ramsay, AR, Reeder, JC, Silamut, K, Sokhna, C